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EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package

Certification
China ShenZhen Mingjiada Electronics Co.,Ltd. certification
China ShenZhen Mingjiada Electronics Co.,Ltd. certification
Customer Reviews
Shipped very fast,and was very helpful,New and Original,would highly recommend.

—— Nishikawa From Japan

Professional and fast service,acceptable prices for goods. excellent communication,product as expected. I highly recommend this supplier.

—— Luis From United States

High Quality and Reliable Performance: "The electronic components we received from [ShenZhen Mingjiada Electronics Co.,Ltd.] are of high quality and have shown reliable performance in our devices."

—— Richardg From Germany

Competitive Pricing: The pricing offered by is very competitive, making it an excellent choice for our procurement needs.

—— Tim From Malaysia

The customer service provided by is excellent. They are always responsive and helpful, ensuring our needs are met promptly.

—— Vincent From Russia

Great prices, fast delivery, and top-notch customer service. ShenZhen Mingjiada Electronics Co.,Ltd. never disappoints!

—— Nishikawa From Japan

Reliable components, fast shipping, and excellent support. ShenZhen Mingjiada Electronics Co.,Ltd is our go-to partner for all electronic needs!

—— Sam From United States

High-quality parts and a seamless ordering process. Highly recommend ShenZhen Mingjiada Electronics Co.,Ltd for any electronics project!

—— Lina From Germany

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EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package

EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package
EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package

Large Image :  EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package

Product Details:
Place of Origin: CN
Brand Name: Original Factory
Certification: Lead free / RoHS Compliant
Model Number: EFM8BB21F16G-C-QFN20R
Payment & Shipping Terms:
Minimum Order Quantity: 10
Price: Contact for Sample
Packaging Details: Standard package
Delivery Time: 3-5 work days
Payment Terms: TT
Supply Ability: 10000 Pieces per Day

EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package

Description
Highlight:

8-Bit Microcontroller MCU

,

50MHz 8051 Microcontroller

,

20-QFN Microcontroller MCU

EFM8BB21F16G-C-QFN20R Microcontroller
The EFM8BB21F16G-C-QFN20R is an 8-bit microcontroller featuring a 50MHz CIP-51 8051 core. This high-performance MCU is packaged in a compact 20-QFN format, making it ideal for space-constrained industrial applications.
MJD Electronics Advantages
  • 15+ years of electronic components experience
  • Secure ordering process
  • Excellent customer feedback rating
  • Guaranteed delivery dates
  • 100% low price guarantee
  • Global export to 108 countries with 99.9% customer satisfaction
Company Profile
Shenzhen Mingjiada Electronics Co., Ltd. is an authorized independent distributor of electronic components from world-renowned brands. Established in Shenzhen in 1996, we have expanded with branches in Hong Kong, Japan, Russia, and Taiwan. Our company holds ISO9001:2014 quality management and ISO14001:2014 environmental management certifications.
With an experienced team in sales, R&D, and management, we specialize in distributing products from over 500 well-known manufacturers. Committed to maximizing customer benefits, we provide comprehensive product ranges and responsive service through professional logistics and customer support teams.
Quality Assurance
EFM8BB21F16G-C-QFN20R 8-Bit 50MHz Microcontroller MCU with CIP-51 8051 Core in 20-QFN Package 0
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9QXL2000BNLGI8VFQFPN-72
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8T33FS6221ETGITQFP-52
9DBL0843ANDGI8VFQFPN-48
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9DBL0443ANLGI8VFQFPN-32
9DBV0631BKLFTVFQFPN-40
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8SLVD1204-33NLGIVFQFN-16
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9QXL2001CNHGK8GQFN-80
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Frequently Asked Questions
Are your products original?
Yes, all products are original. Supplying new original imported components is our primary business focus.
Which Certificates do you have?
We are an ISO 9001:2015 Certified Company and an active member of ERAI.
Can you support small quantity orders or samples? Is the sample free?
Yes, we support sample orders and small quantities. Sample costs vary depending on your order requirements and project scope.
How do you ship orders? Is it safe?
We use major express carriers including DHL, FedEx, UPS, TNT, and EMS. We can also use your preferred forwarder. All products are professionally packaged to ensure safety, and we assume responsibility for any damage to your order during shipping.
What is your lead time?
We ship stock parts within 5 working days. For non-stock items, we will confirm the lead time based on your order quantity.

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

しょうた
Japan Oct 23.2025
It is a great shopping experience,the sales are very professional and very enthusiasm,fast delivery,good quality ,i will buy them next time!
F
FRANCK
France Sep 10.2025
Good product quality, purchasing for the umpteenth time never disappoints, honest and trustworthy seller.recommended!
J
Jose
South Korea May 24.2025
Supplier is highly recommended, kind and fast response.
Contact Details
ShenZhen Mingjiada Electronics Co.,Ltd.

Contact Person: Sales Manager

Tel: 86-13410018555

Fax: 86-0755-83957753

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